Common Side Effects of Dupixent
Dupixent (dupilumab), used for conditions like eczema, asthma, and chronic rhinosinusitis with nasal polyps, most often causes injection-site reactions such as redness, swelling, itching, or pain. Other frequent effects include eye issues like conjunctivitis (pink eye), dry eyes, or itchy eyes, affecting up to 20% of users in clinical trials. Upper respiratory tract infections, sore throat, and oral herpes also occur regularly.[1][2]
Serious Side Effects and Warnings
Severe reactions are less common but include hypersensitivity responses like anaphylaxis, angioedema (swelling under the skin), or serum sickness. Eye problems can escalate to keratitis (corneal inflammation) or vision changes. The drug carries a boxed warning for eosinophilic conditions; stopping systemic steroids while on Dupixent may trigger vasculitis or complications from high eosinophil counts. Helminth infections can worsen in patients not treated for them prior to starting.[1][3]
Side Effects by Condition Treated
- Atopic Dermatitis (Eczema): Injection-site reactions (10-20%), conjunctivitis (10%), herpes infections, dry mouth.
- Asthma: Similar eye issues, plus throat pain and eosinophilia risks.
- COPD or Nasal Polyps: Upper respiratory infections, joint pain, and fatigue reported more often.
Children on Dupixent for eczema see higher rates of conjunctivitis (17%) versus adults (5%).[1][2]
How Long Do Side Effects Last?
Most injection-site reactions resolve within days to a week. Eye-related effects may persist for weeks but often improve with treatment like artificial tears. Serious effects like vasculitis can last longer and require stopping the drug.[1]
Who Experiences Side Effects Most?
Eye problems hit older patients and those with longer treatment durations harder. Pre-existing eye conditions increase risk. About 70-80% of users report no serious issues, but monitoring is key for everyone.[2][3]
Managing and Reporting Side Effects
Rotate injection sites, use cool compresses for reactions, and see an eye doctor promptly for vision changes. Report issues to FDA MedWatch or your provider. No routine lab monitoring is required, but watch for infection signs.[1]
[1]: Dupixent Prescribing Information (FDA)
[2]: Drugs.com - Dupixent Side Effects
[3]: Dupixent Official Site - Safety